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L-Arginine, 250 g

≥98,5 %, USP, for biochemistry
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
i causes serious eye irritation
P280 P305+P351+P338
i wear protective gloves/eye protection, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
Pack Qty.
2-Amino-5-guanidinovaleric acid
Empirical formula C6H14N4O2
Molar mass (M) 174,2 g/mol
Density (D) 1,56 g/cm³
Melting point (mp) 224 °C
CAS No. 74-79-3
EG-Nr. 200-811-1

€55.80/Pack Qty. 

excl. VAT. | 250 g per Pack Qty.

Art. No. 3144.3

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Product details

L-Arginine ≥98,5 %, USP, for biochemistry

Technical Information
Checked according to pharmacopoeia USP 
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Art. No. Pack Qty. Pack. Price Quantity
3144.1 50 g plastic


3144.2 1 kg plastic


3144.3 250 g plastic


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Downloads / MSDS

General information

Amino acids

Our amino acids are of the highest purity and suitable for a broad range of applications in biochemistry. Besides the natural occurring L-amino acids, we offer a selection of unnatural D-amino acids and DL-amino acids.

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Appearancewhite, cryst. powder
Assay (dry substance)98,5-101,0 %
Appearance of solutionclear, colourless
Specific rotation [α]b (8 % in HCl 6 N)+26,3° to +27,7°
pH value (1 g in 20 ml H2O)10,5- 12,0
Ammonium (NH4)≤0,02 %
Chloride (Cl)≤0,02 %
Sulphate (SO4)≤0,02 %
Arsenic (As2O3)≤0,0001 %
Iron (Fe)≤0,001 %
Heavy metals (as Pb)≤0,001 %
Foreign amino acidscomplies
Loss on drying≤0,5 %
Sulphated ash≤0,1 %